trial run

• Essai préliminaire ou session d'entraînement visant à évaluer la performance, le fonctionnement ou l'efficacité de quelque chose avant sa mise en œuvre complète ou son utilisation officielle.

A preliminary test or practice session conducted to evaluate the performance, functionality, or effectiveness of something before its full implementation or official use.

1. Preliminary testB2formal

   A test or practice of a new procedure, system, or product to see if it works correctly before full implementation.

   Essai préliminaire

   • We did a trial run of the software before launching it.
   • The team conducted a trial run of the emergency evacuation plan.
   • She performed a trial run of her presentation for feedback.